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Code Issues Packages Projects Releases Wiki Activity

Scroll to bottom if new comments arrive in ViewRPANBroadcastFragment.

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This commit is contained in:
Alex Ning 2021-07-06 21:04:02 +08:00
parent 372f373601
commit 236b6b66f1
1 changed files with 16 additions and 1 deletions
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17
app/src/main/java/ml/docilealligator/infinityforreddit/fragments/ViewRPANBroadcastFragment.java
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@ -16,6 +16,7 @@ import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.exoplayer2.ExoPlaybackException;
@ -267,7 +268,21 @@ public class ViewRPANBroadcastFragment extends Fragment {
payload.getString(JSONUtils.BODY_KEY),
payload.getLong(JSONUtils.CREATED_UTC_KEY));
handler.post(() -> adapter.addRPANComment(rpanComment));
handler.post(() -> {
LinearLayoutManager manager = ((LinearLayoutManager) recyclerView.getLayoutManager());
boolean shouldScrollToBottom = false;
if (manager != null) {
int lastPosition = manager.findLastCompletelyVisibleItemPosition();
int currentItemCount = adapter.getItemCount();
if (currentItemCount > 0 && lastPosition == currentItemCount - 1) {
shouldScrollToBottom = true;
}
}
adapter.addRPANComment(rpanComment);
if (shouldScrollToBottom) {
recyclerView.smoothScrollToPosition(adapter.getItemCount() - 1);
}
});
}
} catch (JSONException e) {
e.printStackTrace();